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石工泵DT双端面系列
DT double end series of masonry pump

product manual:
The mechanical seal of DT type desulfurization pump of Shijiazhuang Industrial Pump Factory is a multi-spring double-end mechanical seal. The double-end sealing surfaces are made of high-quality hard alloy or silicon carbide. The base material can be selected from 304, 316L, 2205, 2507, etc. The structure has the advantages of anti-blocking, anti-abrasion, corrosion resistance and the like, and the service life is more than twice that of ordinary mechanical seals.
Structural features:
1. Double-end non-container mechanical seal. The multiple springs are effectively protected, the moving ring is compensated, and the sealed cavity needs to be added.
2. Circulating sealing liquid, the sealing liquid pressure is greater than the pump cavity pressure by more than 0.1MPa.
3. The default material of the friction pair is 316 stainless steel inlaid with hard alloy, and the material of the friction pair and the substrate can also be freely changed according to user requirements.


Shijiazhuang Industrial Pump Factory DT type mechanical seal shaft diameter is available from Ф25 to Ф170 in stock. It belongs to double-end multi-spring non-balanced mechanical seal. It is equipped with an original mechanical seal sleeve. The default friction pair material is hard alloy + hard. Alloy, the auxiliary sealing material is fluoro rubber, and the base material is high-quality stainless steel. You can also re-match it according to different working conditions of the customer. For example, in the alkaline working environment, the auxiliary sealing O-ring can be selected as ternary. Ethylene-propylene rubber, the base material can be 2Cr13, etc.



Zigong Keyu Sealing Co., Ltd. supplies the original DT full series of desulfurization pump mechanical seal models of Shijiazhuang Industrial Pump Factory:
40DT-B20 (19) 40DT-A19 (18) 40DT-A17 (16) 25DT-A25
25DT-A15 50DT-A30 (29) 40DT-A25 50DT-B40 (36)
60DT-A30 (29) 65DT-A40 (39) 80DT-A36 (35) 100DT-B40
100DT-A45 (44) 100DT-A60 100DT-A50 150DT-A55
200DT-B45 150DT-A60 300DT-A60 500DT-A76
350DT-A78 600DT-A82 600DT-A83 700DT-A80
700DT-A90 800DT-A90

This type of mechanical seal can be used in Shijiazhuang Industrial Pump Factory, as well as most well-known pump factories in the north, such as "Hebei Kunteng, Cangzhou Haoshi, Baoding Tongda, Yuzhou Water Pump, Shijiazhuang Impurity Pump Factory". Mechanical seal installation dimensions are consistent.




DT series mechanical seals have a high utilization rate in FGD desulfurization systems. They are more and more favored by users for easy installation and stable operation, reliable sealing and long service life. We use a lot of standard principles in the manufacturing process, that is, each part is extremely versatile. We can reduce our production costs while meeting customer delivery deadlines.